The paper is the analysis of the Zoo Story from the view of existentialism. The first part of the paper is the brief introduction of existentialism. It introduces the cause of existentialism, the origin and development of existentialism, mainly introducing four major existentialists’ idea and the focuses of research of existentialism. The second part of the paper is the analysis of the Zoo Story. The analysis is about two aspects: the first aspect is from the view of the practice of individual feelings in existentialism; the second aspect is from the view of the relationship between people in existentialism. As the representative of Albee Edward, The Zoo Story is influenced by existentialism.